1533946223 has 2 divisors, whose sum is σ = 1533946224. Its totient is φ = 1533946222.

The previous prime is 1533946207. The next prime is 1533946237. The reversal of 1533946223 is 3226493351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1533946223 - 2⁴ = 1533946207 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1533946273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766973111 + 766973112.

It is an arithmetic number, because the mean of its divisors is an integer number (766973112).

Almost surely, 2^1533946223 is an apocalyptic number.

1533946223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1533946223 is an equidigital number, since it uses as much as digits as its factorization.

1533946223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 38.

The square root of 1533946223 is about 39165.6255280061. The cubic root of 1533946223 is about 1153.2851805234.

The spelling of 1533946223 in words is "one billion, five hundred thirty-three million, nine hundred forty-six thousand, two hundred twenty-three".